The Radial Natural Neighbours Interpolators Extended to Elastoplasticity

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2009

Autores

Lucia Maria D S de Jesus Simas Dinis (Autor) Outra; Renato Manuel N Natal Jorge (Autor) FEUP; Jorge Belinha (Autor) FEUP

Ata de Conferência Internacional

Título: Radial Natural Neighbours Interpolators: 2D and 3D Elastic and Elastoplastic Applications

Páginas: 175-198

Indexação

ISI Web of Knowledge - 15 Citações

Scopus - 24 Citações

Classificação Científica

FOS: Ciências exactas e naturais > Matemática

Outras Informações

ID Authenticus: P-003-RWS

Abstract (EN): Considering a small strain formulation a Radial Natural Neighbour Interpolator method is extended to the elastoplastic analysis. Resorting to the Voronoi tessellation the nodal connectivity is obtained. The Delaunay triangulation supplies the integration background mesh. The improved interpolation functions based on the Radial Point Interpolators are provided with the delta Kronecker property, easing the imposition of the essential and natural boundary conditions. The Newton-Raphson method is used for the solution of the nonlinear system of equations and an Hill yield surface is considered. Benchmark examples prove the high accuracy and convergence rate of the proposed method.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 24